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1. 发明授权

US08154836B2 Line current differential protection upon loss of an external time reference 有权
标题翻译：外部时间基准损耗时的线路电流差动保护
公开(公告)号：US08154836B2
公开(公告)日：2012-04-10
申请号：US12561979
申请日：2009-09-17
申请人： Bogdan Z. Kasztenny , Normann Fischer , Luther S. Anderson
发明人： Bogdan Z. Kasztenny , Normann Fischer , Luther S. Anderson
IPC分类号： H02H3/00
CPC分类号： H02H3/30 , H02H1/0061 , H04J3/0667
摘要： A line current differential protection system that uses an external time reference continues providing protection to a power apparatus upon the loss of the external time reference. An external time reference synchronization mode and a channel based synchronization mode may be selectively applied on a per channel basis such that only those channels in the system that are not guaranteed to stay symmetrical use external time reference synchronization. When the external time reference is lost, fallback strategies may be used such as disabling or de-sensitizing the line current differential protection function, switching from the external time reference synchronization mode to a channel based synchronization mode with appropriately selected protection settings, and/or marking the channel as unavailable to isolate the system from the consequences of synchronization errors over this channel and instead using a master-slave mode with other available channels to continue providing line protection with the current differential system.
摘要翻译：使用外部时间基准的线路电流差动保护系统在损失外部时间基准时继续为电力设备提供保护。可以在每个通道的基础上选择性地应用外部时间基准同步模式和基于信道的同步模式，使得只有系统中不能保持对称的那些通道使用外部时间基准同步。当外部时间基准丢失时，可以使用回退策略，诸如禁用或去敏感线路电流差动保护功能，从外部时间基准同步模式切换到具有适当选择的保护设置的基于频道的同步模式，和/或将通道标记为不可用，以将系统与该通道的同步错误的后果隔离开来，而不是使用具有其他可用通道的主从模式继续使用当前差分系统提供线路保护。

2. 发明申请

US20080281540A1 APPARATUS AND METHOD FOR ESTIMATING SYNCHRONIZED PHASORS AT PREDETERMINED TIMES REFERENCED TO A COMMON TIME STANDARD IN AN ELECTRICAL SYSTEM 审中-公开
标题翻译：用于估计在电气系统中的共同时间标准的预定时间的同步相位的装置和方法
公开(公告)号：US20080281540A1
公开(公告)日：2008-11-13
申请号：US12114898
申请日：2008-05-05
申请人： Gregary C. Zweigle , Luther S. Anderson , Armando Guzman-Casillas
发明人： Gregary C. Zweigle , Luther S. Anderson , Armando Guzman-Casillas
IPC分类号： G01R13/00
CPC分类号： G01R19/2513 , Y02E60/728 , Y04S10/265
摘要： An apparatus and method estimates a plurality of synchronized phasors at predetermined times referenced to an absolute time standard in an electrical power system. The method includes acquiring and determining a frequency of a power system signal, sampling the power system signal at a sampling interval rate based on a frequency of the power system signal to form signal samples, and generating a plurality of acquisition time values based on an occurrence of each of the signal samples at a corresponding plurality of different times referenced to the absolute time standard. The method further includes adjusting a phasor of each of the signal samples based on a time difference between a corresponding selected acquisition time value and a predetermined time referenced to an absolute time standard to form the plurality of synchronized phasors.
摘要翻译：装置和方法以参考电力系统中的绝对时间标准的预定时间估计多个同步相量。该方法包括获取和确定电力系统信号的频率，基于电力系统信号的频率以采样间隔速率对功率系统信号进行采样以形成信号采样，以及基于发生时产生多个采集时间值以相对于绝对时间标准的相应多个不同时间的每个信号样本。该方法还包括基于相应的所选采集时间值和参考绝对时间标准的预定时间之间的时间差来调整每个信号样本的相量，以形成多个同步相量。

3. 发明申请

US20070268644A1 USER INTERFACE FOR MONITORING A PLURALITY OF FAULTED CIRCUIT INDICATORS 有权
标题翻译：用于监测多个故障电路指示器的用户界面
公开(公告)号：US20070268644A1
公开(公告)日：2007-11-22
申请号：US11750947
申请日：2007-05-18
申请人： Edmund O. Schweitzer , Luther S. Anderson , Mark J. Bosold , Douglas A. Park , Laurence Virgl Feight
发明人： Edmund O. Schweitzer , Luther S. Anderson , Mark J. Bosold , Douglas A. Park , Laurence Virgl Feight
IPC分类号： H01H73/00
CPC分类号： H02H3/042 , H02H1/0069
摘要： A user interface for a wireless device used to monitor multiple groups of faulted circuit indicators. Each group of faulted circuit indicators includes a radio interface unit, which is coupled to each of the faulted circuit indicators in the group. The user interface includes an identification indicator, which includes a plurality of radio interface unit status indicators, each of which corresponds to a particular radio interface unit, and which indicates a selected radio interface unit. The user interface also includes a way indicator comprising a plurality of faulted circuit indicator status indicators, each of which corresponds to a particular faulted circuit indicator coupled to the selected radio interface unit. In addition, each radio interface unit status indicator indicates whether a particular radio interface unit coupled to a faulted circuit indicator is asserting a fault condition.
摘要翻译：用于无线设备的用户界面，用于监视多组故障电路指示器。每组故障电路指示器包括无线电接口单元，其耦合到组中的每个故障电路指示器。用户接口包括识别指示符，其包括多个无线电接口单元状态指示符，每个无线电接口单元状态指示符对应于特定无线电接口单元，并且指示所选择的无线电接口单元。用户接口还包括一个路由指示符，包括多个故障电路指示符状态指示符，每个指示符对应于耦合到所选无线电接口单元的特定故障电路指示符。此外，每个无线电接口单元状态指示符指示耦合到故障电路指示器的特定无线电接口单元是否断言故障状况。

4. 发明授权

US06608742B2 Voltage and current source selection system for use in the protection, automation and control of an electric power system 有权
标题翻译：电压和电流源选择系统用于电力系统的保护，自动化和控制
公开(公告)号：US06608742B2
公开(公告)日：2003-08-19
申请号：US09899961
申请日：2001-07-06
申请人： Edmund O. Schweitzer, III , Jeffrey B. Roberts , Armando Guzman-Casillas , Joseph B. Mooney , Luther S. Anderson
发明人： Edmund O. Schweitzer, III , Jeffrey B. Roberts , Armando Guzman-Casillas , Joseph B. Mooney , Luther S. Anderson
IPC分类号： H02H300
CPC分类号： H02H1/063 , H02H3/00 , H02H7/261
摘要： The system includes a plurality of protection application elements to accomplish various power system protection functions, including for example line protection, line fault location, current direction determination, breaker protection and synchronism check, among others. The system includes local sources of current and voltage information for the protective functions as well as a receiving section for receiving such current and voltage values from a remote source, such as another protection device, as well as other necessary input information for the protective functions. A selection logic section is responsive to the output of the protective function elements, as well as the local and remote data to determine whether the primary or local sources are to be used. The outputs of the protective function elements are used by an output section to control circuit breakers and the like and are also transmitted, with the local and remote source quantities, to other protective devices.
摘要翻译：该系统包括多个保护应用元件，以实现各种电力系统保护功能，包括例如线路保护，线路故障定位，电流方向确定，断路器保护和同步检查等。该系统包括用于保护功能的本地电流和电压信息源以及用于从远程源（例如另一保护装置）接收这种电流和电压值的接收部分以及用于保护功能的其它必要的输入信息。选择逻辑部分响应于保护功能元件的输出以及本地和远程数据，以确定是使用主源还是本地源。保护功能元件的输出由输出部分用于控制断路器等，并且还将本地和远程源数据传输到其他保护装置。

5. 发明授权

US08494795B2 Apparatus and method for estimating synchronized phasors at predetermined times referenced to a common time standard in an electrical system 有权
标题翻译：用于在电气系统中参考公共时间标准的预定时间估计同步相量的装置和方法
公开(公告)号：US08494795B2
公开(公告)日：2013-07-23
申请号：US12963331
申请日：2010-12-08
申请人： Gregary C. Zweigle , Armando Guzman-Casillas , Luther S. Anderson
发明人： Gregary C. Zweigle , Armando Guzman-Casillas , Luther S. Anderson
IPC分类号： G01R27/00 , G06F19/00
CPC分类号： G01R19/2513 , Y02E60/728 , Y04S10/265
摘要： An apparatus and method estimates a plurality of synchronized phasors at predetermined times referenced to a common time standard in an electrical power system. The method includes acquiring and determining a frequency of a power system signal, sampling the power system signal at a sampling interval rate based on a frequency of the power system signal to form signal samples, and generating a plurality of acquisition time values based on an occurrence of each of the signal samples at a corresponding plurality of different times referenced to the common time standard. The method further includes adjusting a phasor of each of the signal samples based on a time difference between a corresponding selected acquisition time value and a predetermined time referenced to a common time standard to form the plurality of synchronized phasors.
摘要翻译：一种装置和方法在电力系统中以公共时间标准参考的预定时间估计多个同步相量。该方法包括获取和确定电力系统信号的频率，基于电力系统信号的频率以采样间隔速率对功率系统信号进行采样以形成信号采样，以及基于发生时产生多个采集时间值在相应的多个不同时间以参考公共时间标准的每个信号样本。该方法还包括基于相应选择的采集时间值和参考公共时间标准的预定时间之间的时间差来调整每个信号样本的相量，以形成多个同步相量。

6. 发明申请

US20120162843A1 LINE CURRENT DIFFERENTIAL PROTECTION UPON LOSS OF AN EXTERNAL TIME REFERENCE 有权
标题翻译：对外部时间参考的损失进行线路电流差分保护
公开(公告)号：US20120162843A1
公开(公告)日：2012-06-28
申请号：US13411780
申请日：2012-03-05
申请人： Bogdan Z. Kasztenny , Normann Fischer , Luther S. Anderson
发明人： Bogdan Z. Kasztenny , Normann Fischer , Luther S. Anderson
IPC分类号： H02H9/02
CPC分类号： H02H3/30 , H02H1/0061 , H04J3/0667
摘要： A line current differential protection system that uses an external time reference continues providing protection to a power apparatus upon the loss of the external time reference. An external time reference synchronization mode and a channel based synchronization mode may be selectively applied on a per channel basis such that only those channels in the system that are not guaranteed to stay symmetrical use external time reference synchronization. When the external time reference is lost, fallback strategies may be used such as disabling or de-sensitizing the line current differential protection function, switching from the external time reference synchronization mode to a channel based synchronization mode with appropriately selected protection settings, and/or marking the channel as unavailable to isolate the system from the consequences of synchronization errors over this channel and instead using a master-slave mode with other available channels to continue providing line protection with the current differential system.
摘要翻译：使用外部时间基准的线路电流差动保护系统在损失外部时间基准时继续为电力设备提供保护。可以在每个通道的基础上选择性地应用外部时间基准同步模式和基于信道的同步模式，使得只有系统中不能保持对称的那些通道使用外部时间基准同步。当外部时间基准丢失时，可以使用回退策略，诸如禁用或去敏感线路电流差动保护功能，从外部时间基准同步模式切换到具有适当选择的保护设置的基于频道的同步模式，和/或将通道标记为不可用，以将系统与该通道的同步错误的后果隔离开来，而不是使用具有其他可用通道的主从模式继续使用当前差分系统提供线路保护。

7. 发明申请

US20110077885A1 APPARATUS AND METHOD FOR ESTIMATING SYNCHRONIZED PHASORS AT PREDETERMINED TIMES REFERENCED TO A COMMON TIME STANDARD IN AN ELECTRICAL SYSTEM 有权
标题翻译：用于估计在电气系统中的共同时间标准的预定时间的同步相位的装置和方法
公开(公告)号：US20110077885A1
公开(公告)日：2011-03-31
申请号：US12963331
申请日：2010-12-08
申请人： Gregary C. Zweigle , Armando Guzman-Casillas , Luther S. Anderson
发明人： Gregary C. Zweigle , Armando Guzman-Casillas , Luther S. Anderson
IPC分类号： G06F19/00
CPC分类号： G01R19/2513 , Y02E60/728 , Y04S10/265
摘要： An apparatus and method estimates a plurality of synchronized phasors at predetermined times referenced to a common time standard in an electrical power system. The method includes acquiring and determining a frequency of a power system signal, sampling the power system signal at a sampling interval rate based on a frequency of the power system signal to form signal samples, and generating a plurality of acquisition time values based on an occurrence of each of the signal samples at a corresponding plurality of different times referenced to the common time standard. The method further includes adjusting a phasor of each of the signal samples based on a time difference between a corresponding selected acquisition time value and a predetermined time referenced to a common time standard to form the plurality of synchronized phasors.
摘要翻译：一种装置和方法在电力系统中以公共时间标准参考的预定时间估计多个同步相量。该方法包括获取和确定电力系统信号的频率，基于电力系统信号的频率以采样间隔速率对功率系统信号进行采样以形成信号采样，以及基于发生时产生多个采集时间值在相应的多个不同时间以参考公共时间标准的每个信号样本。该方法还包括基于相应选择的采集时间值和参考公共时间标准的预定时间之间的时间差来调整每个信号样本的相量，以形成多个同步相量。

8. 发明申请

US20110063766A1 LINE CURRENT DIFFERENTIAL PROTECTION UPON LOSS OF AN EXTERNAL TIME REFERENCE 有权
标题翻译：对外部时间参考的损失进行线路电流差分保护
公开(公告)号：US20110063766A1
公开(公告)日：2011-03-17
申请号：US12561979
申请日：2009-09-17
申请人： Bogdan Z. Kasztenny , Normann Fischer , Luther S. Anderson
发明人： Bogdan Z. Kasztenny , Normann Fischer , Luther S. Anderson
IPC分类号： H02H3/00 , H04L7/00
CPC分类号： H02H3/30 , H02H1/0061 , H04J3/0667
摘要： A line current differential protection system that uses an external time reference continues providing protection to a power apparatus upon the loss of the external time reference. An external time reference synchronization mode and a channel based synchronization mode may be selectively applied on a per channel basis such that only those channels in the system that are not guaranteed to stay symmetrical use external time reference synchronization. When the external time reference is lost, fallback strategies may be used such as disabling or de-sensitizing the line current differential protection function, switching from the external time reference synchronization mode to a channel based synchronization mode with appropriately selected protection settings, and/or marking the channel as unavailable to isolate the system from the consequences of synchronization errors over this channel and instead using a master-slave mode with other available channels to continue providing line protection with the current differential system.
摘要翻译：使用外部时间基准的线路电流差动保护系统在损失外部时间基准时继续为电力设备提供保护。可以在每个通道的基础上选择性地应用外部时间基准同步模式和基于信道的同步模式，使得只有系统中不能保持对称的那些通道使用外部时间基准同步。当外部时间基准丢失时，可以使用回退策略，诸如禁用或去敏感线路电流差动保护功能，从外部时间基准同步模式切换到具有适当选择的保护设置的基于频道的同步模式，和/或将通道标记为不可用，以将系统与该通道的同步错误的后果隔离开来，而不是使用具有其他可用通道的主从模式继续使用当前差分系统提供线路保护。

9. 发明授权

US07480580B2 Apparatus and method for estimating synchronized phasors at predetermined times referenced to an absolute time standard in an electrical system 有权
标题翻译：在电气系统中参考绝对时间标准的预定时间估计同步相量的装置和方法
公开(公告)号：US07480580B2
公开(公告)日：2009-01-20
申请号：US11504788
申请日：2006-08-15
申请人： Gregary C. Zweigle , Luther S. Anderson , Armando Guzman-Casillas
发明人： Gregary C. Zweigle , Luther S. Anderson , Armando Guzman-Casillas
IPC分类号： G01R27/00
CPC分类号： G01R19/2513 , Y02E60/728 , Y04S10/265
摘要： An apparatus and method estimates a plurality of synchronized phasors at predetermined times referenced to an absolute time standard in an electrical power system. The method includes acquiring and determining a frequency of a power system signal, sampling the power system signal at a sampling interval rate based on a frequency of the power system signal to form signal samples, and generating a plurality of acquisition time values based on an occurrence of each of the signal samples at a corresponding plurality of different times referenced to the absolute time standard. The method further includes adjusting a phasor of each of the signal samples based on a time difference between a corresponding selected acquisition time value and a predetermined time referenced to an absolute time standard to form the plurality of synchronized phasors.
摘要翻译：装置和方法以参考电力系统中的绝对时间标准的预定时间估计多个同步相量。该方法包括获取和确定电力系统信号的频率，基于电力系统信号的频率以采样间隔速率对功率系统信号进行采样以形成信号采样，以及基于发生时产生多个采集时间值以相对于绝对时间标准的相应多个不同时间的每个信号样本。该方法还包括基于相应的所选采集时间值和参考绝对时间标准的预定时间之间的时间差来调整每个信号样本的相量，以形成多个同步相量。

10. 发明授权

US06662124B2 Protective relay with synchronized phasor measurement capability for use in electric power systems 有权
标题翻译：具有同步相量测量能力的保护继电器用于电力系统
公开(公告)号：US06662124B2
公开(公告)日：2003-12-09
申请号：US10124858
申请日：2002-04-17
申请人： Edmund O. Schweitzer, III , Luther S. Anderson , Armando Guzman-Casillas , Gregary C. Zweigle , Gabriel Benmouyal
发明人： Edmund O. Schweitzer, III , Luther S. Anderson , Armando Guzman-Casillas , Gregary C. Zweigle , Gabriel Benmouyal
IPC分类号： G01R1902
CPC分类号： H02H1/0007 , H02H3/40
摘要： The relay system obtains voltage and current values from a power line and uses a first sampling element to sample the voltage and current values at selected intervals of time. The resulting sampled signals are used for power system-wide protection, control, monitoring and metering. The sampled signals are then resampled at a rate which is a selected multiple of the power system frequency. The results of the resampling are used by processing circuitry for protection functions including fault determinations.
摘要翻译：继电器系统从电力线获得电压和电流值，并使用第一采样元件在选定的时间间隔对电压和电流值进行采样。所得到的采样信号用于电力系统范围的保护，控制，监测和计量。然后，采样信号以电力系统频率的选定倍数的速率重新采样。重采样的结果由处理电路用于保护功能，包括故障确定。

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